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EQUATION OF STATE FOR AQUEOUS SILICA SPECIES AT PRESSURES FROM 1 BAR TO 20 KBAR AND TEMPERATURES FROM 25-DEGREES TO 900-DEGREES-C BASED ON SIMULATED VALUES OF THE DIELECTRIC-CONSTANT

Abstract:

We have used modified Born theory to extend the Shock-Helgeson-Sverjensky equation of state of aqueous silica to 20 kbar and 900°C. An important requirement of this equation of state is the dielectric constant of the solvent (ε{lunate}), which has been experimentally measured only to 5 kbar and 550°C. Our extension of the Shock-Helgeson-Svetjensky equation relies, therefore, on molecular dynamics simulations which we have previously shown to reproduce the experimental data at densities betwee...

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Publication status:
Published

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Authors


WASSERMAN, E More by this author
Journal:
CHEMICAL GEOLOGY
Volume:
121
Issue:
1-4
Pages:
3-9
Publication date:
1995-04-05
DOI:
ISSN:
0009-2541
URN:
uuid:53deda14-b8dc-4500-b365-e0c3c581ecca
Source identifiers:
163835
Local pid:
pubs:163835
Language:
English

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